Partnership targets current sensor modules for e-mobility

Infineon Technologies AG and Swoboda are jointly developing high-performance current sensor modules for automotive applications. The partnership leverages current sensors from Infineon with Swoboda’s expertise in sensor modules to develop sensing solutions for hybrid and electric vehicles (HEV/EVs). These current measurement solutions will target high-volume applications such as traction inverters, battery management systems and other key automotive applications.

Swoboda CSM510HP2 current sensor module (Source: Infineon Technologies AG)

The first of these products, the Swoboda CSM510HP2, features a fully encapsulated current sensor module with a reduced footprint. Based on Infineon’s XENSIV TLE4973 coreless current sensor IC, the module delivers high precision sensing with a total error below 2 percent.

The XENSIV high-precision coreless current sensors are used to measure both AC and DC currents. They can be used in a range of applications, including traction inverters, industrial drives, photovoltaic inverters and EV charging systems.

Offering high accuracy measurement, the Swoboda CSM510HP2x is a galvanically isolated ultra-compact current sensor module that can measure high currents at high voltages. The module is available in single-ended (CSM510HP2S) and differential (CSM510HP2D) output configurations. Other features include high linearity thanks to the coreless measurement technology and low drift over temperature and lifetime. It embeds the Infineon XENSIV TLE4973 chipset including direct pass-through of all input/output signals.

The new module is specifically designed for integration with Infineon’s HybridPACK Drive G2 automotive power module for traction inverters in EVs. This eliminates the need for separate external current sensors, enabling compact traction inverter designs, the company said.

The HybridPACK Drive G2 inverter evaluation kits are available with both silicon and silicon-carbide power modules. They include both the power and logic boards.

Infineon and Swoboda plan to develop additional current sensing solutions for any type of power device. Other target applications include inverter DC link and high-voltage battery management.